倾斜转弯导弹的分散自适应滑模解耦控制方案

针对倾斜转弯(BTT)导弹大迎角飞行状态下,3通道间较强的运动、气动、惯性耦合,提出了一种BTT导弹分散自适应滑模解耦控制方法。根据分散控制思想,将BTT导弹控制系统表示为由3个关联子系统组成的大系统。为每个子系统设计仅依赖局部测量信息的模型参考自适应滑模控制器。考虑到通道间关联的影响,设计协调回路并调整局部分散控制器的参数,保证大系统的全局渐近稳定同时实现解耦控制。自适应滑模控制器对建模不确定性、大迎角下的气动参数变化具有更强的适应性和鲁棒性。仿真结果表明,系统对机动指令的跟踪效果良好,满足BTT控制的要求。

Decentralized Adaptive Sliding Mode Decoupling Control Scheme for Bank-to-turn Missile

For the strong kinematic，pneumatic and inertia coupling among three channels of bank-to-turn（BTT）missile, a decentralized adaptive sliding mode control scheme is proposed. Based on the idea of decentralized control, the BTT missile control system is divided into three associated subsystems. A model reference adaptive sliding mode controller based on the local measurement was designed for each subsystem. Considering the conjunction of the three channels, a coordination loop was designed and the parameters of local decentralized controllers were regulated to guarantee the global asymptotic stability and realize the decoupling control. The adaptive sliding mode controller has strong adaptability and robustness for the modeling uncertainty and the pneumatic parameter variation under a high angle of attack flight condition. Compared to traditional decoupling control method, the decentralized control does not need extra measurement of the coupled item, which is beneficial to the practical application. The simulation results demonstrate that the system tracks the maneuver commands well and satisfies the requirements of BTT control.